package cn.cvs.interceptor;

import cn.cvs.pojo.SysUser;
import cn.cvs.utils.Constants;
import org.springframework.web.servlet.HandlerInterceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;

public class LoginInterceptor implements HandlerInterceptor {
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws IOException {
        HttpSession session=request.getSession();
        SysUser user=(SysUser) session.getAttribute(Constants.USER_SESSION);
        if(null!=user){
            return true;
        }else{
           response.sendRedirect("/user/toLogin");
        }
        return false;
    }
}
